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13303334431 = 19889668879
BaseRepresentation
bin11000110001111000…
…01100011000011111
31021100010120102002001
430120330030120133
5204221123200211
610040024343131
7650445322402
oct143074143037
937303512061
1013303334431
115707427072
1226b3314aa7
13134019942a
14902b69d39
1552cdbdac1
hex318f0c61f

13303334431 has 4 divisors (see below), whose sum is σ = 13304023200. Its totient is φ = 13302645664.

The previous prime is 13303334419. The next prime is 13303334441. The reversal of 13303334431 is 13443330331.

13303334431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13443330331 = 72291859639.

It is a cyclic number.

It is not a de Polignac number, because 13303334431 - 217 = 13303203359 is a prime.

It is a super-2 number, since 2×133033344312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 13303334431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13303334441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314551 + ... + 354328.

It is an arithmetic number, because the mean of its divisors is an integer number (3326005800).

Almost surely, 213303334431 is an apocalyptic number.

13303334431 is a deficient number, since it is larger than the sum of its proper divisors (688769).

13303334431 is an equidigital number, since it uses as much as digits as its factorization.

13303334431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688768.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 13303334431 its reverse (13443330331), we get a palindrome (26746664762).

The spelling of 13303334431 in words is "thirteen billion, three hundred three million, three hundred thirty-four thousand, four hundred thirty-one".

Divisors: 1 19889 668879 13303334431